They say "buy it right or buy it twice" , especially OCN air cooling expert ehume. I wish I knew more before I bought this CPU cooler, because it was crap. Ineffective design on cooling CPU, and is in dire need of a professional lapping to even have a chance at being decent.
The Tuniq Propeller is only worth it if you want something that is slightly better than a stock cooler, that looks cool and is quiet.. Oh and money not being an object, either.